Feed mechanism for planing-machines.



PATENTED DEC. 17. 1907. H. B. ROSS. FEED MEOHANISMPOR PLANING MAGHINES.

AIPIQIOATIOH FILED JULY 25, 1904.

4 SHEETS-431E111 1.

PATENTED DEC; 17, 1907.

H B. ROSS. v FEED MECHANISM FOR PLANING MACHINES.

APPLICATION FILED JULY 25, 1904.

4 SHEETS-SHEET 2.

.NO. 874,036- PATENTED DEC. 17, 1907.

* H. B. ROSS.

FEED MECHANISM FOR PLANING MACHINES.

APPLICATION FILED JULY 25. 1904.

4 sums-sum a.

No. 874,036. H. B. ROSS.

FEED MECHANISM FOR PLANING MACHINES. APPLICATION FILED JULY 26, 1904.

PATENTED DEG. 17,1907.

4 S HEETB-BKEET 4.

HARRY B. ROSS, OF B ELOIT, WISGONSEN, ASSIGNOR 'lO 'llllfi I BELOIT, WISCONSIN, A CORPORATION OF l3 l1 ltLIN MACHINE WOlihS, OF WISCONSIN.

FEED MECHANISM FOR PLANING-MACHINES.

Specification of Letters Patent.

Patented Dec. 17, 1907.

Application filed July 25. 1904- Serial No. 218.021.

To all whom it may concern:

Be it known that I, HARRY B. Ross, a citizen of the United States, residing at Beloit, in the county of Rock and State ofWisconsin, have invented certain new and useful Improvements in Feed Mechanism for Planing -Machines, of which the following is a specification.

My invention relates to feed mechanism for planing and other machinesadapted to treat lumber; and has for its principal object to provide a new and improved mechanism for mounting the u per rolls and for adjusting their lower rol s at the same time preserving the elastic yieldable capabilities of the upper rolls which are necessaryby reason of variations in thickness of the lumber handled by the machine.

A further object of the invention is to provide a new and improved gearing between the several feed-rolls of the m'achme so applied as to balance and uniformly distribute the driving strains. I

n 0 i a a To these ends my mventlon conslsts 1n a new and improved feed-roll mechanism possessing the peculiarities of construction and operation substantially as hereinafter described and moreparticularly pointed out in the claims.

Referring to the accompanying drawings, wherein I have shown a preferred mechanical embodi'm'ent of my invention,-'-Figure 1 is a side elevational View of the feed-roll mechanism of a partly broken away andin section; Fig. 2'is a top lan view of the same parts; Fig. 3 is an enri elevational view, partly in vertical section through the yieldable'mechanism for.

supporting the upper roll and Fig. 4 is a vertical transverse section through the housings rods, substantially of the upright adjusting on the line 4'4 of Fig. 2.

Referring to the drawings, 5 designates a portion of the horizontal machine-frame on which the feed-roll mechanism is mounted.

The feed-rolls are'usually arranged in front and rear pairs, each air comprising a stationary lowerroll and ticallyadjustable upper roll, cooperating therewith.

The stationary lower rolls are designated by 6 and the adjustable upper rolls cooperating therewith by'Z. The ower rolls 6 are suitably journaled across the frame-of the roll-stands are clam osltion re atively to the stationary ,With

planing. or similar machine,-

a yieldable and vermachine, and between the journals of said rolls on eachside of the machine-fr'ameiiscs a roll-stand 8, in the upper ends of which ed inwardly-projecting bushings 9, said bus ings receivim a crossshaft 10 journaled therein, an having hinged thereonthe inner ends of a pair of op-. posltely-extendingv roll-carriers or housings 11 having suitably journaled in their outer forked ends the 'upper feed-rolls 7. The roll-carriers 11 are hinged on thebushings 9 by hinge members 12 (Fig. 2) said parts being connected at one end by horizontal screw-bolts 13 'and at the vertical adjusting-bolts 14, the lower endsol' which are threaded into lugs 15 on the hinge membersJZ so that by turning said vertical bolts that end of the roll-carrier is raised or lowered to effect roll with reference to thelower roll.

Describing next the mechanism for driving the rolls, 16 designates'the driving-shaft journaledacross the the feeding mechanism and carrying on one end the driving-pulley 17 and on its opposite end a. spur-pinionlS. This latter meshes a large gear 19 mounted on one end of opposite end by the leveling of the upper machine-frame beneath a shaft 20 j ournaled in and between the rollstands 8. The opposite end of the shaft 20 carries a gear 21 meshing with and driving gears 22 on the adjacent ends of the lower rolls 6; These gears are considerably larger .in diameter than the diameter of the rolls driven-thereby, and in the preferred practice are a proximately twice the size of saidrolls.

On t 1e shaft 20, just inside the large gear 19 is a gear 23 similar to the ear 21, which gear meshes with a superpose gear 24 mounted on one of the bushings said gear 24 engaging and driving gears 25 on the shafts of the upper rolls '7, said gears 25 being similar 1n dimensions and function to the gears 22. By this arrangement and distribution of driving-gears, the lower rolls being driven on one side of the machine-frame and the upper rolls on the opposite side, the driving strains are distributed across the machineframe and onbothends of the rolls, thus lesseningthe tendency todistort and displace the rolls from 'accurateworking positions. Another and important advantage resulting from the described arrangement of gearing resides in the fact that the direct roll-driving gears 22 and 25 are enabled to be made much larger'than Where both pairs'of gears are on the same side of the machine, this arz ange- ,ment providing more space for the accommodation of larger gears, and the employment of such larger gears reducing the breaking;

and Wearing strains on the teeth of the gears.

Coming now to the principal feature of the present invention, WlllCll resides in the means for yieldingly su porting and adjustmg' the upper rolls, 26 esignates each of a pair of screw rods, arranged one on-each side of the machine-frame between'ihe front and ,rear pairs of rolls, and slidably guided in inwardlyrojecting lugs 27 .of the machineframe, their up er threaded ends being confined in vertica housings 28 mounted on theupper ends of the roll-stands 8. On the lower end of each rod 26 is mounted and secured, as by a pin 29 passed through the said parts, ,a skeleton frame or yoke designated as an entirety by 30, the rod 26being secured to the lowertransverse member thereof and: passing'through the/u er transverse mem- -her. At the'upper "an yoke are edgewi'se projections 30 and 30 res ectively, which are apertured. toslid- I ing y receive connecting and supportingrods 31, the u perends of which are'pivotally connecte With the under sides of the roll carriers 11, as shown at 32 Those portions of the rods 31 within and adjacent to; the projections 30 and 30 of the yoke are threaded to receive, on their lower ends,

adjustable followers 33 for compressionsprings 34, and above the rejections 30 adjusting-nuts 35 and 100 uts 36, the 3 rings 34 abutting against the under sides 0 the projecting lu s 30. By reason of this mechanism itowi-ll be seen that the tension of the springs 34 is readily adjustable'by adjusting the followers 33; while thenuts 35 and locknuts 36 constitute stops to limit the distance between the upper and lowerfeedqolls, and also constitute a means individual to each pair of rolls for finelyadjusting the distance between said rolls. The up er ends of the rods 26 are'somewhat reduce in diameter andexternallythreaded,

as shown in Fig. 4, to receive worm-wheels 3'7 which are en "aged and operated by worms 38. on a horizontal shaft 39 actuated by ahand-wheel 40. By turning the latter in one direction or the other the rods 26 are simultaneously and equally raised and lowe'red', thus simultaneously and equally raising and lowerin the-yokes 30 carried thereby and the rol supporting rods 31 carried by said'yokes, and thus simultaneously and equally adjusting the distance betweeuthe upper. and lower rolls of each pair. 'By. ad

'justi n' the nuts 35, the upper rolls may be ,md vi ually set to roper workmg positions and relations to their cooperating lower rolls.

The mechanism hereinabove described and I shown in the drawings pertains to'the in?" rods herein shown.

lower ends of said 4. Ina feed mechanism, for

feeding rolls 'of a planing machine; but it is in such a case Qf'icourse but a single -ro1l-,

supporting rod would berequired, and the frame for yoke carried bythe adjusting rods would be correspondingly changed to accommodate a single rod instead of the pair of It is evident that variations and modifications in respect to thespecific. details of the mechanism as' herein shown and e scribed would readily occur to the mechamc skilled in this art, andmight be made without departingfrom the principle of the invention or sacrificing any of the advantages thereof: Hence, I do not limit the invention to the partieular' form of mechanism herein shown and described, except to the extent indicated in specific claims.

I claim: o 1..In a feed mechanism for planing and similar machines, the combination with a lower roll, an upper roll, and a hinged carrierfor the latter having a fixed hinge-center, of a roll-carrier supporting member, and a slidably-mouhted screw.- adjusting said supporting member, said screw actifi-asaearrier for said supporting member in its vertical'movement's, substantially as described.

2. In a feed mechanism for planing and similar machines, the combination Wltll; a

lower roll, an upper. roll, .and a hinged carrier for the latter having a fixed hinge center, of

a roll-carrier supporting member, connecting-rods between said roll-carrier and,sup-' porting member throughwhich the former is-supported by the latter; and aslidablymounted screw adjusting said supporting member, said screw acting as a carrier for said supportinfimember inits-vertical movements, substantially as described.

3 In a feedzmechanism for planing and slmilar machines, the combination with a lower roll, an upper-roll, and a hinged carrier for the latter, of afroll-carrier supporting member, a rodconnecting the latter to the roll carrier and transmitting the weight of said roll-carrier to said supporting member,

.means for vertically adjusting said supporting member, and means applied to said'rod for yieldably maintaining the relativeposi- .t1ons of said roll-carrier" and its supporting member, substant ally as described.

planing and similar machines, the combination with a -lower roll, an upper roll, and "a hinged carrier for the latter,

ofra roll-carrier su porting member, a connecting-rod between t e latter and the carrler through which said carrier is li tlca ly-ad ustable rod carrylng said supportmg member, and means applied to said conorted by said supporting member,'a ver- 7, 1 -tive positions of sai 874,036 a i I 3 necting-i'od for yieldably maintaining the relative positions of said roll-carrier and its supporting member, substantially as described.

5 5. In'a feed'mechanism for planin 'andsaid carriers, respectively through which. the

weight of the latter is transnnttedto said yoke, a vertically-adjustable rod carrying said yoke, and means applied to said connecting-rods for yieldabl maintaining the relad roll-carriers and yoke,

1 substantially as described. f v

' -6.- In a feed mechanism for. planin and similar machines, the combination wit two pairs. ofupper and lower rolls, and hinged carriers for saidupper rolls having fixed hinge-centers, of a yoke dis osed beneath and between said pairs of ro s, connectingrods between said carriers and the opposite sides of said yoke, res ectively, a vertlcall adjustable rod on the ower end of which said yoke is suspended,'and connections between said connecting-rods and the yoke foryield-. 'ingly maintaining the relative positions of' sa1d carriers and scribed 7. In a feed mechanism for planin and similar machines, the combination wit two pairs of upper and lower rolls, and hinged carriers for said upper rolls having fixed hinge-centers, of a yoke disposed beneath and between said pairs of rolls,"connectingrods between said carriers and the opposite sides of said yoke, respectively, elast1cyconyoke, substantially as denections between said connecting-rods and sa1d yoke, stops on said rods cooperating.

with said yoke to limit the downward move ment of the former relative to the latter, and" a vertically-adjustable rod on the'lower end of which said yoke is bodily supported, substantially as described.

8. In a feed mechanism for planing and similar machines, the combination with upper and lower feed-rolls, of a spur-gear on one end of the lower roll exceeding in diame- 7 ter the distance between the axes of said rolls, a similar spur-gear on the opposite end of the upper roll, a driving shaft, and driving connections between the latter and said rollgears, substantially as described.- 9. In a feed mechanism for planing and similar machines, the combination'with two' pairs of upper and lower'feed-rolls, of s urgears on one end of the lower rolls each aving a diameter exceeding the diameter of the roll driven thereby, similar spur-gears on the opposite ends of the upper rolls, a driving shaft, and spur-gear drivin connections between the latter and said ro l-gears, substantially as described. 10. In a feed mechanism for planin and similar machines, the combination'wit -two pairs of upper and lower feed-rolls, of s urgears on one end of the lower rolls each av- .ing a diameter approximately equaling twice the. diameter, of'the,roll driven thereb similar spur-gears on the op osite ends 0? the upper rolls, a counter-sha t disposed between said pairs of rolls, gearing between 1 the ends of said counter-shaft and the re-- spective roll-gears adjacent said ends com-, mon to both rolkgears, a driving shaft, and driving connections between the latter and" said counter-shaft,substantially as described.

11. In a feed mechanism for planin and '80 similar machines, the combination Wit upper and lower feed-rolls and a suitably supported hinge-pivot, of a carrier. or housi for the 11 per roll, a hinge member mounte on said i 'n e-pivot, and connections between said 'ngemember and roll-carrier permitting relative vertical adjustment of 7 the opfposite ends of the latter for the urpose o leveling the upper roll, substantially as descrilfed. I I

similar machines, the combinationwit upper and lower feed-rolls and a su tably supported hinge-pivot, of a carrier or'housing for the upper roll, a hinge member mounted 95 on said hinge-pivot, and connections between said hmge member and said roll-car rier, said connections com rising a horizontal pivot-bolt at one end o f said parts and a vertically-adjustable vertical connectingbolt at the other end of said parts whereby one end of said roll-carrier may be raised or lowered relatively to its opposite end .to level the upper roll, substantially as described.

HARRY 13. Ross.

Witnesses:

LoUIs M. RANDALL, M. E. LINDEMAN.

12. In a feed mechanism for planin and loo 

